Fire will burn leaves slightly faster than the other flammable objects, indicating the game has different burn durations for different types of flammable blocks (though see block ticks to explain randomness in durations). Non-flammable blocks can be lit but do not burn away.

Mobs and players will catch fire when exposed to fire. Fire will obstruct the player's view slightly and they will slowly lose health at a rate of 1⁄2 heart per second. This is the same rate that the player gains health in peaceful mode, so fire alone will not kill you in this mode.

Items or blocks falling into fire will catch light and quickly disappear.

If a mob that can drop meat dies while on fire, it will drop the cooked version of it, with the exception of guardians.

Fire will spread over flammable surfaces. Fire can climb up walls, across floors and ceilings, and over small gaps. More precisely, a fire block can turn any air block that is adjacent to a flammable block into a fire block. This can happen at a distance of up to one block downwards, one block sideways (including diagonals), and four blocks upwards of the original fire source. Therefore if the player is using it as a fireplace, caution is needed.

Fire spreads from a still lava block similarly: any air block one above and up to one block sideways (including diagonals) or two above and two blocks sideways (including diagonals) that is adjacent to a flammable block may be turned into a fire block.

Fire will burn out after a while on its own, however the player may want to extinguish the fire as soon as possible to prevent damage. You can use water to extinguish the fire. Punching or hitting the side of a burning block will extinguish the fire block on that side. Hitting fire with a tool does not use up any uses for the tool. Placing blocks on the fire will also extinguish it.

Mobs on fire will be extinguished when in water or in a cauldron containing it. In the latter case, one layer of water will disappear.

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